1&period; Wall panel&lpar;1&rpar; Male and female cam lock type&comma; use hexagonal key to assemble&period; Cam lock is pre-burried in the panel&comma; put the key in the hole to lock&period;There is a hat for the hole so that to decorate it&period;

&lpar;2&rpar; The panel edge has gasket to prevent leaking the cold air&period;

&lpar;4&rpar;The foaming material we choose is imported BASF &lpar;US brand&rpar; foaming material&comma; green to the environment&period;The steel sheet we purchase from Baosteel and POSCO which are the biggest steel factories in the world&comma; they promise the painted galvanized steel they produce will not fade in 15 years&period;